Description

This article goes over the configuration to consider when the SRX is being used as the gateway of a home.

Symptoms

You will need your (new) ISP to provide you with information about the IP address assigned to your house, its subnet, and its next-hop IP address. It could be that your (new) ISP uses DHCP so please ask.

Solution

There therefore 3 configs relevant:


  • IP address and subnet of the ISP-facing interface (show interfaces),
  • Default route pointing to the next-hop (show routing-options static route 0.0.0.0/0 next-hop),
  • NAT config, which you want it to be configured as interface nat, not a pool, specially if the ISP uses DHCP (show security nat).

Modification History

2024-10-21 : Article Created